1 /*
2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/stringTable.hpp"
27 #include "classfile/symbolTable.hpp"
28 #include "code/codeCacheExtensions.hpp"
29 #include "code/icBuffer.hpp"
30 #include "gc/shared/collectedHeap.hpp"
31 #include "interpreter/bytecodes.hpp"
32 #include "memory/universe.hpp"
33 #include "prims/methodHandles.hpp"
34 #include "runtime/globals.hpp"
35 #include "runtime/handles.inline.hpp"
36 #include "runtime/icache.hpp"
37 #include "runtime/init.hpp"
38 #include "runtime/safepoint.hpp"
39 #include "runtime/sharedRuntime.hpp"
40 #include "services/memTracker.hpp"
41 #include "utilities/macros.hpp"
42
43
44 // Initialization done by VM thread in vm_init_globals()
45 void check_ThreadShadow();
46 void eventlog_init();
47 void mutex_init();
48 void chunkpool_init();
49 void perfMemory_init();
50 void SuspendibleThreadSet_init() NOT_ALL_GCS_RETURN;
51
52 // Initialization done by Java thread in init_globals()
53 void management_init();
54 void bytecodes_init();
55 void classLoader_init1();
56 void compilationPolicy_init();
57 void codeCache_init();
58 void VM_Version_init();
59 void os_init_globals(); // depends on VM_Version_init, before universe_init
60 void stubRoutines_init1();
61 jint universe_init(); // depends on codeCache_init and stubRoutines_init
62 void interpreter_init(); // before any methods loaded
63 void invocationCounter_init(); // before any methods loaded
64 void marksweep_init();
65 void accessFlags_init();
66 void templateTable_init();
67 void InterfaceSupport_init();
68 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
69 void referenceProcessor_init();
70 void jni_handles_init();
71 void vmStructs_init();
72
73 void vtableStubs_init();
74 void InlineCacheBuffer_init();
75 void compilerOracle_init();
76 bool compileBroker_init();
77 void dependencyContext_init();
78
79 // Initialization after compiler initialization
80 bool universe_post_init(); // must happen after compiler_init
81 void javaClasses_init(); // must happen after vtable initialization
82 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
83
84 // Do not disable thread-local-storage, as it is important for some
85 // JNI/JVM/JVMTI functions and signal handlers to work properly
86 // during VM shutdown
87 void perfMemory_exit();
88 void ostream_exit();
89
90 void vm_init_globals() {
91 check_ThreadShadow();
92 basic_types_init();
93 eventlog_init();
94 mutex_init();
95 chunkpool_init();
96 perfMemory_init();
97 SuspendibleThreadSet_init();
98 }
99
100
101 jint init_globals() {
102 HandleMark hm;
103 management_init();
104 bytecodes_init();
105 classLoader_init1();
106 compilationPolicy_init();
107 codeCache_init();
108 CodeCacheExtensions::initialize();
109 VM_Version_init();
110 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::VMVersion);
111 os_init_globals();
112 stubRoutines_init1();
113 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines1);
114 jint status = universe_init(); // dependent on codeCache_init and
115 // stubRoutines_init1 and metaspace_init.
116 if (status != JNI_OK)
117 return status;
118
119 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Universe);
120 interpreter_init(); // before any methods loaded
121 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Interpreter);
122 invocationCounter_init(); // before any methods loaded
123 marksweep_init();
124 accessFlags_init();
125 templateTable_init();
126 InterfaceSupport_init();
127 SharedRuntime::generate_stubs();
128 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
129 referenceProcessor_init();
130 jni_handles_init();
131 #if INCLUDE_VM_STRUCTS
132 vmStructs_init();
133 #endif // INCLUDE_VM_STRUCTS
134
135 vtableStubs_init();
136 InlineCacheBuffer_init();
137 compilerOracle_init();
138 dependencyContext_init();
139
140 if (!compileBroker_init()) {
141 return JNI_EINVAL;
142 }
143 VMRegImpl::set_regName();
144
145 if (!universe_post_init()) {
146 return JNI_ERR;
147 }
148 javaClasses_init(); // must happen after vtable initialization
149 stubRoutines_init2(); // note: StubRoutines need 2-phase init
150 MethodHandles::generate_adapters();
151 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines2);
152
153 #if INCLUDE_NMT
154 // Solaris stack is walkable only after stubRoutines are set up.
155 // On Other platforms, the stack is always walkable.
156 NMT_stack_walkable = true;
157 #endif // INCLUDE_NMT
158
159 // All the flags that get adjusted by VM_Version_init and os::init_2
160 // have been set so dump the flags now.
161 if (PrintFlagsFinal || PrintFlagsRanges) {
162 CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
163 }
164
165 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::InitGlobals);
166 return JNI_OK;
167 }
168
169
170 void exit_globals() {
171 static bool destructorsCalled = false;
172 if (!destructorsCalled) {
173 destructorsCalled = true;
174 perfMemory_exit();
175 if (PrintSafepointStatistics) {
176 // Print the collected safepoint statistics.
177 SafepointSynchronize::print_stat_on_exit();
178 }
179 if (PrintStringTableStatistics) {
180 SymbolTable::dump(tty);
181 StringTable::dump(tty);
182 }
183 ostream_exit();
184 }
185 }
186
187 static volatile bool _init_completed = false;
188
189 bool is_init_completed() {
190 return _init_completed;
191 }
192
193
194 void set_init_completed() {
195 assert(Universe::is_fully_initialized(), "Should have completed initialization");
196 _init_completed = true;
197 }